The fact is many people are not aware of who Bernie Sanders is. I have found this particularly true of many young adults. Some have heard his name but weren't really sure of who he was or his position on issues.
I have gotten positive responses when mentioning him and gently nudging people to check him out. Now I am going to start asking people to pledge at least $5 a month to his campaign. It's not a large amount but imagine if we can get several million to pledge this each month. I am definitely targeting those I know contributed to President Obama.
The candidates running so far have been a depressing bunch and I have heard many voters discouraged about what they see. That leads to a great opening to introduce them to Sanders !